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C. Kurt Dewhurst Diana Baird N'Diaye Marsha MacDowell 《Curator: The Museum Journal》2014,57(4):455-472
Today there is a growing global awareness of the need to address issues related to the safeguarding and use of both tangible and intangible heritage. By engaging with communities in the documentation of local cultures—especially their folklife, or in other words, their traditional intangible cultural heritage—museums can create collections that will serve as foundations for museum research, exhibitions, and programs that have more resonance with and relevance for those communities. Interactions of these kinds—in particular those of the Smithsonian's Center for Folklife and Cultural Heritage and the Michigan State University Museum, home of the Michigan Traditional Arts Program, as well as collaborations between the Smithsonian Folklife Festival and the Great Lakes Folk Festival, and other programs around the world—have served as important platforms for public discourse about a variety of issues and have produced programs and exhibitions both at home and around the world. 相似文献
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Yong-Chao Liu Salah Laghrouche Abdoul N'Diaye Maurizio Cirrincione 《Journal of The Franklin Institute》2021,358(1):400-427
This paper proposes a novel Hermite neural network-based second-order sliding-mode (HNN-SOSM) control strategy for the synchronous reluctance motor (SynRM) drive system. The proposed HNN-SOSM control strategy is a nonlinear vector control strategy consisting of the speed control loop and the current control loop. The speed control loop adopts a composite speed controller, which is composed of three components: 1) a standard super-twisting algorithm-based SOSM (STA-SOSM) controller for achieving the rotor angular speed tracking control, 2) a HNN-based disturbance estimator (HNN-DE) for compensating the lumped disturbance, which is composed of external disturbances and parametric uncertainties, and 3) an error compensator for compensating the approximation error of the HNN-DE. The learning laws for the HNN-DE and the error compensator are derived by the Lyapunov synthesis approach. In the current control loop, considering the magnetic saturation effect, two composite current controllers, each of which comprises two standard STA-SOSM controllers, are designed to make direct and quadrature axes stator current components in the rotor reference frame track their references, respectively. Comparative hardware-in-the-loop (HIL) tests between the proposed HNN-SOSM control strategy and the conventional STA-SOSM control strategy for the SynRM drive system are performed. The results of the HIL tests validate the feasibility and the superiority of the proposed HNN-SOSM control strategy. 相似文献
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